Novel compact ultra‐wideband bandpass filter based on vialess vertical CPW/microstrip transitions. Issue 18 (7th August 2017)

• Record Type: Journal Article
• Authors: Guo, Zhenyu; Yang, Tao
• Is Part Of: Electronics letters. Volume 53:Issue 18(2017)
• Page Start: 1258
• Page End: 1260
• Publication Date: 2017-08-07
• Subjects: ultra wideband technology -- band‐pass filters -- coplanar waveguides -- microstrip transitions -- slot lines -- microstrip filters; compact ultra‐wideband bandpass filter -- vialess vertical CPW‐microstrip transitions -- UWB bandpass filter -- back‐to‐back hybrid microstrip‐slotline transitions -- coupling configuration -- UWB passband response -- transmission zeros -- upper passband edges -- lower passband edges; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2017.2060
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A novel compact ultra‐wideband (UWB) bandpass filter based on vialess vertical coplanar waveguide (CPW)/microstrip transitions is proposed, designed, fabricated and measured. The represented filter consists of two back‐to‐back hybrid microstrip/slotline transitions derived from the microstrip to CPW. Due to this coupling configuration, a smooth UWB passband response with an insertion loss <0.85 dB is achieved. Moreover, two transmission zeros at lower and upper passband edges are introduced to provide sharp selectivity. For verification, a prototype is fabricated and measured. The simulated results are in good agreement with the measured one.